Surgical & Medical Instruments & Apparatus
Standard Industrial Classification: SIC 3841
Industry Insider Sentiment Analysis
The Surgical & Medical Instruments & Apparatus sector (SIC 3841) acts as a critical barometer for broader economic health. Our real-time monitoring reveals total transactions. Monitoring "cluster buying" is one of the most reliable leading indicators for future sector performance. By analyzing aggregate data across this specific Standard Industrial Classification, investors can filter out individual company volatility and identify high-conviction trends. When multiple directors and officers within the same industry move capital simultaneously, it often signals an upcoming sector-wide revaluation or a fundamental shift in supply chain dynamics that has yet to be recognized by the broader public market.
| Filing Date | Trade Date | Ticker | Company | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-21 21:16 | 2025-01-27 | NSPR | InspireMD, Inc. | Gleason Shane Thomas | Officer | SELL | $2.22 | 85,295 | $189,594 | 1,053,882 |
| 2026-05-21 20:30 | 2026-05-20 | CLPT | ClearPoint Neuro, Inc. | FALLON LYNNETTE C | Director | OPT+S | $11.14 | 5,091 | $56,714 | 48,227 |
| 2026-05-20 20:27 | 2026-05-15 | KRMD | KORU Medical Systems, Inc. | Tharby Linda M | Director, Officer | BUY | $3.92 | 1,191 | $4,669 | 620,622 |
| 2026-05-20 20:30 | 2026-05-20 | RCEL | AVITA Medical, Inc. | O'Toole David D | Officer | BUY | $4.26 | 2,000 | $8,520 | 145,927 |
| 2026-05-20 20:28 | 2026-05-18 | SIBN | SI-BONE, Inc. | Maheshwari Anshul | Officer | SELL | $14.69 | 4,666 | $68,523 | 259,877 |
| 2026-05-20 21:55 | 2026-05-18 | HTFL | Heartflow, Inc. | Rogers Campbell | Officer | OPT+S | $28.34 | 9,219 | $261,266 | 78,731 |
| 2026-05-20 20:38 | 2026-05-18 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $87.64 | 7,500 | $657,265 | 2,172,500 |
| 2026-05-20 20:41 | 2026-05-18 | KRMD | KORU Medical Systems, Inc. | Schiller Eric | Officer | BUY | $3.91 | 5,000 | $19,563 | 5,000 |
| 2026-05-20 20:30 | 2026-05-18 | SIBN | SI-BONE, Inc. | PISETSKY MICHAEL A. | Officer | SELL | $14.63 | 3,726 | $54,527 | 280,509 |
| 2026-05-20 20:31 | 2026-05-18 | SIBN | SI-BONE, Inc. | FRANCIS LAURA | Director, Officer | SELL | $14.71 | 14,957 | $220,000 | 503,444 |
| 2026-05-20 20:02 | 2026-05-15 | KRMD | KORU Medical Systems, Inc. | Tharby Linda M | Director, Officer | BUY | $1,191.00 | 1,191 | $1,418,481 | 620,622 |
| 2026-05-20 16:39 | 2026-05-19 | STIM | Neuronetics, Inc. | Chernett Jorey | 10% owner | BUY | $1.17 | 100,000 | $117,000 | 10,553,988 |
| 2026-05-20 12:00 | 2026-05-18 | OBIO | Orchestra BioMed Holdings, Inc. | Aryeh Jason | Director | BUY | $3.75 | 665 | $2,494 | 118,118 |
| 2026-05-19 20:08 | 2026-05-15 | TLSI | TriSalus Life Sciences, Inc. | Marshak Richard | Officer | SELL | $2.67 | 543 | $1,450 | 125,101 |
| 2026-05-19 20:05 | 2026-05-15 | INSP | Inspire Medical Systems, Inc. | Rondoni John | Officer | SELL | $43.28 | 2,641 | $114,302 | 27,165 |
| 2026-05-19 20:30 | 2026-05-19 | RCEL | AVITA Medical, Inc. | O'Toole David D | Officer | BUY | $4.24 | 2,000 | $8,480 | 143,927 |
| 2026-05-19 20:42 | 2026-05-18 | SGHT | Sight Sciences, Inc. | Bauerlein Alison | Officer | SELL | $5.12 | 12,728 | $65,167 | 688,893 |
| 2026-05-19 20:34 | 2026-05-15 | DXCM | DEXCOM INC | Brown Michael Jon | Officer | SELL | $59.91 | 1,700 | $101,847 | 109,504 |
| 2026-05-19 12:00 | 2026-05-15 | OBIO | Orchestra BioMed Holdings, Inc. | Hochman David P | Director, Officer | BUY | $3.77 | 5,000 | $18,850 | 1,059,029 |
| 2026-05-19 12:00 | 2026-05-15 | OBIO | Orchestra BioMed Holdings, Inc. | Aryeh Jason | Director | BUY | $3.90 | 8,971 | $34,987 | 117,453 |
| 2026-05-18 20:35 | 2026-05-14 | KRMD | KORU Medical Systems, Inc. | Pazdan Christopher | Officer | BUY | $3.88 | 5,000 | $19,400 | 305,131 |
| 2026-05-18 21:21 | 2026-03-14 | BJDX | Bluejay Diagnostics, Inc. | Wurth Douglas Clark | Director | BUY | $2.00 | 12,500 | $25,000 | 12,608 |
| 2026-05-18 21:20 | 2026-03-14 | BJDX | Bluejay Diagnostics, Inc. | Dey Indranil | Director, Officer | BUY | $2.00 | 12,500 | $25,000 | 12,522 |
| 2026-05-18 21:20 | 2026-03-14 | BJDX | Bluejay Diagnostics, Inc. | CHASE DONALD R | Director | BUY | $2.00 | 12,500 | $25,000 | 12,525 |
| 2026-05-18 23:38 | 2026-05-14 | GKOS | GLAUKOS Corp | Kliman Gilbert H | Director | OPT+S | $140.76 | 5,000 | $703,800 | 35,528 |
| 2026-05-18 21:40 | 2026-05-15 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | Webster Brian Daniel | Director, Officer | SELL | $20.96 | 15,000 | $314,330 | 334,786 |
| 2026-05-18 21:18 | 2026-03-14 | BJDX | Bluejay Diagnostics, Inc. | Dey Svetlana | Director | BUY | $2.00 | 12,500 | $25,000 | 12,501 |
| 2026-05-18 21:19 | 2026-03-14 | BJDX | Bluejay Diagnostics, Inc. | ZEIDMAN FRED S | Director | BUY | $2.00 | 12,500 | $25,000 | 12,500 |
| 2026-05-18 20:42 | 2026-05-15 | TLSI | TriSalus Life Sciences, Inc. | Gordon Gary B. | Director | BUY | $2.46 | 10,000 | $24,600 | 72,510 |
| 2026-05-18 20:42 | 2026-05-15 | TLSI | TriSalus Life Sciences, Inc. | Patience David | Officer | BUY | $2.43 | 7,100 | $17,253 | 275,757 |
| 2026-05-18 20:42 | 2026-05-15 | TLSI | TriSalus Life Sciences, Inc. | Szela Mary T | Director, Officer | BUY | $2.59 | 39,682 | $102,776 | 1,065,215 |
| 2026-05-18 20:42 | 2026-05-15 | TLSI | TriSalus Life Sciences, Inc. | Stansky Michael P | Director | BUY | $2.50 | 610,000 | $1,525,000 | 399,698 |
| 2026-05-18 20:42 | 2026-05-15 | TLSI | TriSalus Life Sciences, Inc. | Wahlstrom Mats | Director | BUY | $2.53 | 60,000 | $151,800 | 147,555 |
| 2026-05-18 20:31 | 2026-05-14 | KRMD | KORU Medical Systems, Inc. | Adams Thomas Edward | Officer | BUY | $3.86 | 5,500 | $21,248 | 308,147 |
| 2026-05-18 20:01 | 2026-05-15 | ATRC | AtriCure, Inc. | Doraiswamy Vinayak | Officer | SELL | $28.13 | 5,000 | $140,650 | 91,875 |
| 2026-05-18 12:00 | 2026-05-14 | OBIO | Orchestra BioMed Holdings, Inc. | Fain Eric S | Director | BUY | $4.13 | 20,000 | $82,600 | 91,709 |
| 2026-05-15 20:05 | 2026-05-14 | INSP | Inspire Medical Systems, Inc. | Rondoni John | Officer | SELL | $43.01 | 700 | $30,107 | 29,806 |
| 2026-05-15 20:05 | 2026-05-13 | NSPR | InspireMD, Inc. | Stuka Paul | Director | BUY | $1.16 | 15,000 | $17,325 | 647,871 |
| 2026-05-15 23:25 | 2026-05-11 | PLSE | PULSE BIOSCIENCES, INC. | DUGGAN ROBERT W | Director, 10% owner | BUY | $19.69 | 660,233 | $12,999,988 | 48,370,047 |
| 2026-05-15 16:19 | 2026-05-14 | ICUI | ICU MEDICAL INC/DE | Sanzone Virginia Ruth | Officer | SELL | $124.08 | 2,447 | $303,624 | 19,460 |
| 2026-05-15 00:55 | 2026-05-12 | OSUR | ORASURE TECHNOLOGIES INC | Boyd Steven Kyle | Director | BUY | $3.00 | 75,000 | $224,753 | 113,462 |
| 2026-05-14 21:33 | 2026-05-12 | TMCI | TREACE MEDICAL CONCEPTS, INC. | Treace John T. | Director, Officer, 10% owner | BUY | $2.44 | 153,763 | $375,505 | 7,158,313 |
| 2026-05-14 20:39 | 2026-05-12 | DXCM | DEXCOM INC | Heller Bridgette P | Director | SELL | $60.01 | 1,012 | $60,730 | 25,007 |
| 2026-05-14 00:31 | 2026-05-12 | ICUI | ICU MEDICAL INC/DE | Greenberg David C. | Director | OPT+S | $122.91 | 2,424 | $297,934 | 7,960 |
| 2026-05-13 23:52 | 2026-05-11 | GKOS | GLAUKOS Corp | Kliman Gilbert H | Director | OPT+S | $135.00 | 5,000 | $675,000 | 35,528 |
| 2026-05-13 22:23 | 2026-05-12 | UFPT | UFP TECHNOLOGIES INC | CROTEAU DANIEL C | Director | SELL | $221.71 | 2,864 | $634,977 | 855 |
| 2026-05-13 22:23 | 2026-05-11 | HTFL | Heartflow, Inc. | Farquhar John C.M. | Director, Officer | SELL | $29.12 | 22,562 | $657,005 | 519,397 |
| 2026-05-13 21:00 | 2026-05-12 | NSPR | InspireMD, Inc. | Slosman Marvin | Director, Officer | BUY | $1.20 | 21,000 | $25,200 | 3,556,658 |
| 2026-05-13 21:01 | 2026-05-11 | TCMD | TACTILE SYSTEMS TECHNOLOGY INC | Birkemeyer Elaine M. | Officer | SELL | $24.49 | 4,631 | $113,404 | 130,188 |
| 2026-05-13 20:30 | 2026-05-11 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner | SELL | $84.18 | 7,500 | $631,340 | 2,180,000 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Surgical & Medical Instruments & Apparatus sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3841) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Surgical & Medical Instruments & Apparatus
Every transaction in the Surgical & Medical Instruments & Apparatus industry is reported via Form 4 disclosures. By filtering these filings by industry, investors can detect institutional-scale sentiment shifts before they are reflected in broader market indices, following the capital flow of those with intimate industry knowledge.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.